Re: [Xen-devel] PAT-related crash booting Linux 4.4 + Xen 4.5 on VMware ESXi

2016-05-24 Thread Kani, Toshimitsu
On Tue, 2016-05-24 at 11:54 -0400, Boris Ostrovsky wrote: > On 05/24/2016 10:53 AM, Kani, Toshimitsu wrote: > > > > On Mon, 2016-05-23 at 15:52 -0700, Ed Swierk wrote: > > > > > > Good question. I ran my tests again, and found I'd misinterpreted the > > > Fusion behavior. > > > > > > On Fusion

Re: [Xen-devel] PAT-related crash booting Linux 4.4 + Xen 4.5 on VMware ESXi

2016-05-24 Thread Boris Ostrovsky
On 05/24/2016 10:53 AM, Kani, Toshimitsu wrote: > On Mon, 2016-05-23 at 15:52 -0700, Ed Swierk wrote: >> Good question. I ran my tests again, and found I'd misinterpreted the >> Fusion behavior. >> >> On Fusion 8.1.1, MSR_IA32_CR_PAT returns a reasonable value: >> >> (XEN) Freed 308kB init memory.

Re: [Xen-devel] PAT-related crash booting Linux 4.4 + Xen 4.5 on VMware ESXi

2016-05-24 Thread Ed Swierk
Yes, we're just now moving to 4.4 stable, and will be there for a while, so backporting would be very helpful. --Ed On Tue, May 24, 2016 at 7:53 AM, Kani, Toshimitsu wrote: > On Mon, 2016-05-23 at 15:52 -0700, Ed Swierk wrote: >> Good question. I ran my tests again, and

Re: [Xen-devel] PAT-related crash booting Linux 4.4 + Xen 4.5 on VMware ESXi

2016-05-24 Thread Kani, Toshimitsu
On Mon, 2016-05-23 at 15:52 -0700, Ed Swierk wrote: > Good question. I ran my tests again, and found I'd misinterpreted the > Fusion behavior. > > On Fusion 8.1.1, MSR_IA32_CR_PAT returns a reasonable value: > > (XEN) Freed 308kB init memory. > mapping kernel into physical memory > cpu_has_pat=0

Re: [Xen-devel] PAT-related crash booting Linux 4.4 + Xen 4.5 on VMware ESXi

2016-05-23 Thread Ed Swierk
Good question. I ran my tests again, and found I'd misinterpreted the Fusion behavior. On Fusion 8.1.1, MSR_IA32_CR_PAT returns a reasonable value: (XEN) Freed 308kB init memory. mapping kernel into physical memory cpu_has_pat=0 cpuid_edx(1)=f89cbf5 pat=65536 pat_init_cache_modes pat=50100070406

Re: [Xen-devel] PAT-related crash booting Linux 4.4 + Xen 4.5 on VMware ESXi

2016-05-23 Thread Boris Ostrovsky
On 05/23/2016 10:15 AM, Konrad Rzeszutek Wilk wrote: > On Fri, May 20, 2016 at 04:58:09PM -0700, Ed Swierk wrote: >> (XEN) traps.c:459:d0v0 Unhandled invalid opcode fault/trap [#6] on VCPU 0 >> [ec=] >> (XEN) domain_crash_sync called from entry.S: fault at 82d0802286c3 >>

Re: [Xen-devel] PAT-related crash booting Linux 4.4 + Xen 4.5 on VMware ESXi

2016-05-23 Thread Konrad Rzeszutek Wilk
On Fri, May 20, 2016 at 04:58:09PM -0700, Ed Swierk wrote: > I've encountered two problems booting a Linux 4.4 dom0 on recent > stable xen 4.5 on VMware ESXi 5.5.0. > > One has the same "ata_piix: probe of :00:07.1 failed with error > -22" symptom discussed some time ago, and prevents the

[Xen-devel] PAT-related crash booting Linux 4.4 + Xen 4.5 on VMware ESXi

2016-05-20 Thread Ed Swierk
I've encountered two problems booting a Linux 4.4 dom0 on recent stable xen 4.5 on VMware ESXi 5.5.0. One has the same "ata_piix: probe of :00:07.1 failed with error -22" symptom discussed some time ago, and prevents the kernel from seeing any of the virtual IDE drives exposed by VMware.